UFC 3-575-01 Lightning and Static Electricity Protection ...

1 UFC 3-575-01 July 1, 2012 UNIFIED FACILITIES CRITERIA (UFC) Lightning AND Static Electricity Protection SYSTEMS APPROVED FOR PUBLIC RELEASE: DISTRIBUTION UNLIMITED UFC 3-575-01 July 1, 2012 Lightning AND Static Electricity Protection SYSTEMS Any copyrighted material included in this UFC is identified at the point of use. Use of the copyrighted material apart from this UFC must have the permission of the copyright holder. NAVAL FACILITIES ENGINEERING COMMAND (Preparing Activity) ARMY CORPS OF ENGINEERS AIR FORCE CIVIL ENGINEER SUPPORT AGENCY Record of Changes (changes are indicated by \1\../1/) Change No. Date: Location This UFC supersedes MIL-HDBK 1004/6, Lightning Protection , and Army TM 5-811-3/ Air Force AFM 88-9 Chapter 3, Electrical Design, Lightning and Static Electricity Protection . UFC 3-575-01 July 1, 2012 FOREWORD The Unified Facilities Criteria (UFC) system is prescribed by MIL-STD 3007 and provides planning, design, construction, sustainment, restoration, and modernization criteria, and applies to the Military Departments, the Defense Agencies, and the DoD Field Activities in accordance with USD (AT&L) Memorandum dated 29 May 2002.

2 UFC will be used for all DoD projects and work for other customers where appropriate. All construction outside of the United States is also governed by Status of Forces Agreements (SOFA), Host Nation Funded Construction Agreements (HNFA), and in some instances, Bilateral Infrastructure Agreements (BIA.) Therefore, the acquisition team must ensure compliance with the most stringent of the UFC, the SOFA, the HNFA, and the BIA, as applicable. UFC are living documents and will be periodically reviewed, updated, and made available to users as part of the Services responsibility for providing technical criteria for military construction. Headquarters, Army Corps of Engineers (HQUSACE), Naval Facilities Engineering Command (NAVFAC), and Air Force Center for Engineering and the Environment (AFCEE) are responsible for administration of the UFC system . Defense agencies should contact the preparing service for document interpretation and improvements.

3 Technical content of UFC is the responsibility of the cognizant DoD working group. Recommended changes with supporting rationale should be sent to the respective service proponent office by the following electronic form: Criteria Change Request. The form is also accessible from the Internet sites listed below. UFC are effective upon issuance and are distributed only in electronic media from the following source: Whole Building Design Guide web site Hard copies of UFC printed from electronic media should be checked against the current electronic version prior to use to ensure that they are current. JAMES C. DALTON, JOSEPH E. GOTT, Chief, Engineering and Construction Chief Engineer Army Corps of Engineers Naval Facilities Engineering Command TERRY G. EDWARDS, MICHAEL McANDREW Director, Air Force Center for Engineering and the Environment Director, Facility Investment and Management Department of the Air Force Office of the Deputy Under Secretary of Defense (Installations and Environment) UFC 3-575-01 July 1, 2012 UNIFIED FACILITIES CRITERIA (UFC) NEW DOCUMENT SUMMARY SHEET Document: UFC 3-5 75-01, Lightning and Static Electricity Protection Systems Superseding: MIL- HDBK 1004/6, Lightning Protection .

4 Army TM 5-811-3 and Air Force AFM 88-9 Chapter 3, Electrical Design, Lightning and Static Electricity Protection . Description: UFC 3- 575-01 provides policy and guidance for design criteria and standards regarding Static Electricity Protection , Lightning Protection systems and related grounding for facilities and other structures. Reasons for Document: Provide technical requirements. Incorporate new and revised industry standards. Standardize the tri-service criteria using NFPA 780. Applicable portions of UL 96A are incorporated but UL 96A is no longer relied upon as a basis for compliance. Impact: There are negligible cost impacts associated with this UFC. However, the following benefits should be realized. Standardized guidance has been prepared to assist electrical engineers in the development of the plans, specifications, calculations, and Design/Build Request for Proposals (RFP). This UFC coordinates with all electrical-related UFCs and provides consistent guidance with the other electrical-related UFCs.

5 Unification Issues: The Air Force uses a Shepherd s Crook design for Static ground Protection , which is shown in Figure 2-2. Although not considered a unification issue, it is listed as an Air Force only criterion since the Army no longer uses this style and the Navy never did use this style. The Air Force requires third party certification by organizations other than UL for Lightning Protection system Certificates. The Army and Navy are still evaluating if this approach can be permitted for their facilities. UFC 3-575-01 July 1, 2012 i TABLE OF CONTENTS CHAPTER 1 INTRODUCTION .. 1 1-1 PURPOSE.. 1 1-2 APPLICABILITY.. 1 1-3 GENERAL BUILDING 1 1-4 REFERENCES.. 1 1-5 KEY CODES AND STANDARDS.. 2 CHAPTER 2 Static Electricity Protection .. 3 2-1 Static GROUNDING AND BONDING REQUIREMENTS.. 3 2- Bonding and Grounding Conductors.. 3 2- Connections.. 3 2- Static Bus Bars.. 4 2- Resistance to Ground.

6 5 2- Ground Grab Bars.. 5 2-2 GENERAL APPLICATIONS.. 5 2- Conditions.. 5 2- Applications.. 5 2-3 SPECIFIC APPLICATIONS.. 6 2- Petroleum Oil Lubricants (POL) Facilities.. 6 2- 6 2- Aircraft Parking Aprons and Hangar Floors.. 6 2- Aircraft Parking Aprons.. 7 2- Static Grounds.. 7 2- Power Grounds.. 8 2- Aircraft Fueling.. 8 2- Aircraft Hangar Floors.. 8 2- Grounding Receptacle .. 9 2- Aircraft Sunshades and Shelters.. 11 CHAPTER 3 Lightning Protection 3-1 DETERMINING THE REQUIREMENTS FOR Lightning Protection .. 12 3-2 CONVENTIONAL Lightning Protection SYSTEMS.. 13 3- Air Terminals.. 13 3- Masts.. 13 3- Joint Design.. 14 UFC 3-575-01 July 1, 2012 ii 3- Down Conductors.. 14 3-3 GROUNDING AND BONDING FOR 14 3-4 SURGE Protection .. 15 3-5 REQUIREMENTS FOR ORDINARY FACILITIES AND STRUCTURES.. 15 3- Non-Reinforced Concrete or Wood Frame Building.. 15 3- Reinforced Concrete Buildings.

7 15 3- Steel Frame Building.. 15 3- Steel Framed Building with Metal Siding.. 16 3- Nonmetallic Exterior Walls with Metallic Roof.. 16 3- Metal Roof with Metal Walls.. 16 3- Ramps and Covered Passageways.. 16 3- Post Tension Systems.. 17 3- Buildings Containing Hazardous Areas.. 17 3- Aircraft Control Navigation Aids.. 17 3- Weapons Systems Electronic Facilities, Above Grade.. 17 3- Weapons Systems Electronic Facilities, Below Grade.. 18 3- Protection Included with Other Protection Systems.. 18 3- Requirements Not Included in Other Protection Systems.. 18 3- Installation of Ground Ring.. 18 3- Electrically-Controlled Target Training system .. 19 3- Control Tower.. 19 3- Target Control system .. 19 3- Petroleum Oil Lubricants (POL) Storage Tanks.. 20 3- Satellite Dishes.. 20 APPENDIX A REFERENCES .. 21 APPENDIX B GLOSSARY .. 23 FIGURES Figure 2-1 Static Bus Bar.. 4 Figure 2-2 Air Force Static Grounding Point.

8 8 Figure 2-3 Grounding Receptacle.. 10 Figure 3-1 Typical Air Terminal Assembly Using Steel Framing As Conductor.. 16 Figure 3-2 Below-Grade Weapons Systems Electronics Facilities Ground Ring, Cross Section Elevation.. 19 UFC 3-575-01 July 1, 2012 iii TABLES Table Fuel Storage Tank Grounding Schedule.. 20 UFC 3-575-01 July 1, 2012 1 CHAPTER 1 INTRODUCTION 1-1 PURPOSE. This UFC provides policy and design requirements for Static Electricity Protection , and Lightning Protection systems and related grounding for facilities and other structures. The information provided here must be utilized by electrical engineers in the development of the plans, specifications, calculations, and Design/Build Request for Proposals (RFP) and must serve as the minimum electrical design requirements. It is applicable to the traditional electrical services customary for Design-Bid-Build construction contracts and for Design-Build construction contracts.

9 Project conditions may dictate the need for a design that exceeds these minimum requirements. UFC 3-501-01, Electrical Engineering, provides the governing criteria for electrical systems, explains the delineation between the different electrical-related UFCs, and refers to UFC 3-575-01 for Static Electricity Protection and Lightning Protection system requirements. Refer to UFC 3-501-01 for design analysis, calculation, and drawing requirements. 1-2 APPLICABILITY. Compliance with this UFC is mandatory for DoD facilities located on or outside of DoD installations, whether acquired by appropriated or non-appropriated funds, or third party finance and constructed. Facilities include all temporary or permanent structures, including waterfront facilities, outside storage, and shore Protection for ships and aircraft. Criteria in this UFC document apply to DoD leased facilities outside of DoD installations, whether by appropriated or non-appropriated funds, or third party financed and constructed when DoD or DoD contractor maintains the facility.

10 1-3 GENERAL BUILDING REQUIREMENTS. UFC 1-200-01, "General Building Requirements", provides applicability of model building codes and government-unique criteria for typical design disciplines and building systems, as well as for accessibility, antiterrorism, security, sustainability, and safety. Use this UFC in addition to UFC 1-200-01 and the UFCs and government criteria referenced therein. 1-4 REFERENCES. Appendix A contains a list of references used in this UFC. References applicable to a specific topic are also listed and described in the appropriate sections of this UFC. UFC 3-575-01 July 1, 2012 2 1-5 KEY CODES AND STANDARDS. Comply with the following codes and standards: IEEE 142, IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems. NFPA 70, National Electrical Code. NFPA 70B, Recommended Practice for Electrical Equipment Maintenance. NFPA 77, Recommended Practice on Static Electricity .